2026 NPPES data Gastroenterology Physician NPI 1992864086 MD
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SANKU RAO, MD

Gastroenterology Physician in ENID, Oklahoma. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
939
Medicare Part D claims · 336 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
22.111/100
▼ 61 pts below national avg 83.1 · [object Object]
What the federal data reveals: SANKU RAO, MD is a Gastroenterology Physician ([object Object]) practicing in ENID, Oklahoma with a Medicare Part D prescribing footprint of 939 claims across 336 beneficiaries — 17% brand-name prescribing . Their CMS MIPS Final Score of 22.111/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: SANKU RAO, MD reported a CMS MIPS final score of 22.111 out of 100, below the 83.1 national average, and filed 939 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SANKU RAO, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

SANKU RAO, MD at a glance

Below national average

NPI registry status

Active

Issued 12/06/2006

NPI 1992864086

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

939 13% vs specialty avg

2023 prescription claims

Specialty avg: 833

MIPS final score

22.111/100 60.98899999999999% pts

Below average band

vs 83.1 national avg

Specialty distribution in Oklahoma

How Gastroenterology Physician compares to other specialties among Oklahoma providers

Oklahoma providers

Gastroenterology Physician share within Oklahoma

1. Gastroenterology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gastroenterology Physician share within Oklahoma

Medicare quality performance — MIPS

SANKU RAO, MD's 2023 MIPS final score plotted against the Gastroenterology Physician national average

Below national average
MIPS Final Score
22.111/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gastroenterology Physician) — 22.111/100 vs national avg 83.1

0%100%National avg83%22.1%
MIPS final score (Gastroenterology Physician) — 22.111/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

SANKU RAO, MD is a Gastroenterology Physician provider practicing in ENID, Oklahoma, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1992864086. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SANKU RAO, MD appears in the CMS NPPES registry as a Gastroenterology Physician provider holding MD credentials at 330 S 5TH ST, ENID, OK, 73701, with a listed phone of (580) 234-0285. NPI 1992864086 was issued on 12/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RAO most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 939 prescription claims written by this provider, covering 336 Medicare beneficiaries and totaling roughly $35K in drug spend, split 17% brand-name and 83% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 22.111/100 for the 2023 performance year (Quality 0, Cost 73.7033), compared with the national average of 83.1.

Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

330 S 5TH ST
ENID, OK 73701

Provider Details

NPI 1992864086
Specialty Gastroenterology Physician
Credentials MD
Gender Male
NPI Issued 12/06/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

22.111
Final Score
Avg: 83.1
0
Quality
73.7033
Cost

Reporting: Individual

Brand vs generic prescribing mix · Typical

SANKU RAO, MD — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 939 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

939
Total Claims
$35K
Total Drug Cost
336
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,233
Total Day Supply
29,536
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$10K
Generic Drug Cost
$25K
Antibiotic Claims
26

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.10
Gender Split
61% female / 39% male
Age Distribution
<65: 40, 65-74: 172, 75-84: 110, 85+: 14

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Peg 3350-Electrolyte
Sodium Chloride/Nahco3/Kcl/Peg
173
Famotidine
161
Omeprazole
150
Sucralfate
89
Colestipol Hcl
72
Dicyclomine Hcl
64
Pantoprazole Sodium
32
Metoclopramide Hcl
21
Sulfasalazine
18
Mesalamine Dr
Mesalamine
16

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Gastroenterology Physician Overview

How SANKU RAO, MD fits within the Gastroenterology Physician landscape nationally.

16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider

SANKU RAO, MD's 939 claims are above the specialty average of 833.

Nearby Gastroenterology Physician Providers in Oklahoma

Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as RAO.

Compare Gastroenterology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SANKU RAO, MD's specialty?
SANKU RAO, MD specializes in Gastroenterology Physician and practices in ENID, Oklahoma. Credentials: MD.
How much does SANKU RAO, MD prescribe under Medicare Part D?
In 2023, SANKU RAO, MD wrote 939 Medicare Part D claims totaling $35K in drug costs for 336 beneficiaries.
What is SANKU RAO, MD's Medicare quality score?
SANKU RAO, MD has a CMS MIPS Final Score of 22.111/100 (Quality: 0, Cost: 73.7033). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SANKU RAO, MD located?
SANKU RAO, MD is located at 330 S 5TH ST, ENID, OK, 73701. Phone: (580) 234-0285.
What is SANKU RAO, MD's NPI number?
SANKU RAO, MD's National Provider Identifier (NPI) is 1992864086, issued on 12/06/2006.
Does SANKU RAO, MD prescribe more brand-name or generic drugs?
SANKU RAO, MD's prescribing is 17% brand-name and 83% generic drugs by claim count, with $10K in brand drug costs.
How many Gastroenterology Physician providers are there in the US?
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does SANKU RAO, MD prescribe most often?
Based on 2023 Medicare Part D data, SANKU RAO, MD's most frequently prescribed drugs include Peg 3350-Electrolyte, Famotidine, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SANKU RAO, MD accept Medicare?
SANKU RAO, MD appears in CMS Medicare data with 939 Part D claims and 336 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SANKU RAO, MD's credentials?
SANKU RAO, MD's NPI is 1992864086 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology